Before you leave the lab, the doors and windows ____shut in case of rain.
| A．is | B．are | C．is to be | D．are to be |
.
Soon after getting off his horse, the man appeared at the second storey windows,___he could see nothing but trees.
| A．from which | B．from where | C．in where | D．which |
.
Tom was very angry about ________ to Mary’s birthday party.
| A．not inviting | B．being not invited | C．not being invited | D．not to be invited |
.
You can come here to ask me _____ if you have any questions.
| A．at one time | B．at your time | C．at any time | D．all the time |
.
Having a trip abroad is certainly good for the old couple, but it remains ______ whether they will enjoy it.
| A．to see | B．to be seen | C．seeing | D．see |
.
Tom will succeed _____ your property after your death,but I don’t think he is______success.
| A．in, / | B．at , a | C．to , a | D．from, a |